Henry cook



H. O 0 OK. TELYEGRAP'HIG APPARATUS.

' No. 98,927. Patented Jan. 18, 1870.

Yu: uonms wmzns co. PHOTO-LITNQ, WASHINGTON, u. c.

new glitter fittest mil tia.

HENRY 000K, or PARIS, FRANCE.

Letters Patent No. 98,927, dated January 18, 1870; a'ntedated January 10, 1870.

IMPROVEMENT IN TELEGRAPHIC APPARATUS.

The Schedule referred to in these Letters Patent and. makin part of the name.

To all whom it may concern:

Be it known that I, HENRY 0001:, of Paris, in the Empire of France, gentleman, have inrented'a new and useful Improvement in Apparatus fbr the Transmission and Reception of Typographic or Autographic Te1egrams; and I do hereby declare that the following is a full, clear, and exact description of the construction and operation of the same, reference being bad to the figures, of the annexed drawing, making part of this specification, and t0 the letters marked thereon; that is to say- My invention relates to an improved method of applying synchronism in apparatus used for the electrical transmission and reception of typographic or antographic signals.

Figure 1, of the accompanying drawing, represents an application of the invention to a printing-apparatus.

Figure 2 represents, on an enlarged scale, the details of the point-carrier, hereafter described.

A A is a metallic shaft, on which are out two deep screw-threads, of identical pitch, but running in opposite directions, from end to end, where they join up and terminate together.

B B are two steel mils, with bevelled or shaped bearing-surfaces, set, one on each side of and parallel to the screw A, and corresponding with the grooved wheels I) b, fitted to the point-carrier or chariot, shown apart, in fig. 2.

B" is a third rail, bevelled in V-shape at its under surface, and acting as guide-way to the third grooved wheel I).

a, fig. 2, is a small rod or pivot, which revolves freely in the collar 0, while its lower extremity, d d, forked saddlewise, constitutes a rider, which travels along the screw, propelled by clock-work of any suitable description.

0 is the bracing-point, secured to one side of the carriage-frame, andregulatcd by the adj usting-screwD'.

The point-bearing carriage, thus arranged, is set on the rails B B, the saddle or fork d d, of the pivot a,

gearing in the thread of the screw A, while the whole is secured against lateral or perpendicular displacement, by the central rail B" corresponding with the grooved wheel b". \Vhen, during the working of the apparatus, the carriage reaches one or other end of the shaft A, the neck a, of the saddle-piece d d, revolves in its collar 0, thus gearing in the return thread of the screw, which always rotates in the same direction,so that the carriage, with the tracing-point, travels over the rails B B, from A to A, and vice versa, without the slightest check or interruption. Owing to the synchronic action, the revolution of the shaft A, at the transmitting-station, keeps uniform with that of the corresponding shaft of the receiving-apparatus,

so that the to-and-fro movements of the point-carriers become necessarily identical at each end of the line. 1) represents a composing-case, carrying the movable types or signals a e, and placed on a small truck, E, the wheels of which, ff, travel over the cross-rails The motion of this truck is controlled by the gear F G, or other equivalent mechanism, which impels it forward in a direction at right angles to the movement of the point-carrier, at each transit of the latter, to a distance equal to one-fifth of the height of the types a c, This distance may, of course, be varied, according to the nature of the signals to be produced.

The types forming the telegram being set in the composing-case D, the latter is placed on the truck E, of the transmitting-apparatus, in contact with the tracing-point G, a sheet of chemically-prepared paper being placed under the corresponding point of'the receiving-apparatus, at the other end of the line. circuit being completed, the passage of the transmit ting-point over the types a 0, produces, on the receiving-paper, aseries of marks or signals, the length, position, and other details of which vary, according to the duration of the contact. 1

As above noted, the truck E advances automatically, at each transit of the tracing-point, by adistance equal to, say, one-fifth of the height of the types, so that at each fifth passage, a complete line of printing is reproduced on the prepared paper at the receiving-' station. The mechanism F G may be so arranged as to move forward the truck at this point, to an extra distance, corresponding with the space to be reserved between the lines of the telegram.

The mode of transmitting autographic dispatches is substantially the same as that above described for the printing-process, the apparatus being so'regulated as to give 'slower motion to the truck, on which is placed the metallic or sensitized sheet, at either end of the line.

In the annexed drawing, the invention is represented as applied to the transmitting-instrument, known on the Continent as the Bonelli flipp System but it may be adapted with equal facility toany other synchronic arrangements of like description.

I am aware that double-threaded screws, similar to that above described, and shown by the letter A of the drawing, have already been applied as a means of obtaining reciprocating or to-and-fro motion, in various descriptions of machinery other than telegraphic apparatus. I do not, therefore, lay any claim to this form of screw, taken separately; nor do I adopt it in my arrangement as a simple mechanical equivalent of the single-screw, chariot, or sliding motions, such as are nsedin the Oaselli and other analogous systems The of recording-apparatus, and even in those of the Bonelli Hipp type, as hitherto constructed; but

What I claim, and desire to protect by Letters Patent, is-

The adaptation, to synchronio printing or writing telegraphic mechanism, of the double-threaded screw A, and self-reversing rider or point-carrier a c d, in eombination with a type-truck, E, moved forward at right angles to the tracer, by the step-gear F G, the whole arranged and operated in manner and for the purpose substantially as herein specified, and shown in the figures of the accompanying drawing.

HENRY COOK. Witnesses:

Jxo. G. Nrconn, J. N. ZUST. 

